The Grenville terrane in the northern Appalachians now exposes the deeply buried parts of the crust that was involved in orogeny from 0.9 to 1.2 billion years ago. Previous work suggests that parts of the Grenville Terrane exposed in Ontario were buried as deeply as 40 to 45 km during metamorphism to upper amphibolite or granulite facies. This research will extend investigations aimed at taking advantage of the opportunity to study processes of movements along ductile faults and uplift and cooling patterns of such deep-seated rocks. A number of isotopic, petrologic and structural techniques will be used to define the metamorphic and geochronological history of the Grenville terrane. Results will help constrain tectonic and geochemical processes, including fluid flow, in deep crustal environments of collisional orogenic zones.

Agency
National Science Foundation (NSF)
Institute
Division of Earth Sciences (EAR)
Application #
8805083
Program Officer
Thomas O. Wright
Project Start
Project End
Budget Start
1988-07-01
Budget End
1991-12-31
Support Year
Fiscal Year
1988
Total Cost
$143,139
Indirect Cost
Name
University of Michigan Ann Arbor
Department
Type
DUNS #
City
Ann Arbor
State
MI
Country
United States
Zip Code
48109